If PricewaterhouseCoopers (PwC) seems to tumble from one scandalous audit decision to another (Global Trust Bank to Satyam Computers to Prithvi Information Solutions, to name a few) without being forced to mend its ways, it is probably because our regulators refuse to send the right punitive signals. After the collapse of Global Trust Bank, PwC dragged the RBI to court for initiating action...